Polish-rod clamp



June 22 1926. 1,590,160

E. L. GLUYAS POLISH ROD CLAMP Filed Dec. 5, 1924 faveni E.L.GL|UY Patented June 22, 1926.

UNITED STATES PATENT 7 OFFICE.

EDWIN L. GLUYAS, OF MARICOPA, CALIFORNIA.

POLISH-ROD CLAMP.

Application filed December 3, 1924. Serial No. 753,727.

This invention relates to improvements in polish rod clamps.

The principal object of this invention is to produce a device for gripping the polish rod of a well.

Another object is to produce a device of this character which will automatically tighten when the weight of the polish rod acts upon the cam member.

A further object is to produce a device of this nature which may be quickly adjusted to the polish rod, and one which is simple to operate. I

A still further object is to produce a device which is cheap to manufacture and therefore economical to use.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective view of my device,

Figure 2 is a crosssection taken on the line 2-2 of Figure 3,

Figure 3 is a vertical crosssection of my device, and

Figure 4; is a cross-section taken on the line elel of Figure 3.

In the present method of drawing polish rods, it is customary to use a screw clamp which necessitates a considerable loss of time in the adjusting of the same. To overcome this loss of time I have provided a device which may be quickly attached to the polish rod or disengaged therefrom.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a castin as a whole having a 11001: shaped end 6 and parallel portions 7 and 8. The parallel portion 8 is separated from the hook 6 by a space 9 of suliicient size to permit a polish rod as shown at 11 to pass thcrebetween.

A shaft 12 is mounted in the casting so as to rotate therein and is held against lateral movement as by a handle 13 which abuts the parallel portion 8 and a nut 14 which abuts the parallel portion 7. This shaft is squared as shown at 16 over which a roller 17 is eccentrically mounted. With this construction it is possible for me to throw the handle 13 to a vertical position which moves the roller 17 to the dotted line position of Figure 3. hen in this position the polish rod 11 may be passed through the opening 9 to the position shown in Figure l, after which the handle 13 is rotated so as to bring the periphery of the roller 17 into contact with the polish rod 11.

Asthis roller is eccentrically mounted any tendency of the polish rod to drop through the clamp thus formed, will only tend to increase the binding action between the roller and the hooked end 6.

It will thus be seen that I have provided a very simple device which will accomplish all the objects above set forth.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size and arrangement of parts may be re sorted to without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus described my invention, I

EDWIN L. GLUYAS. 

